4 years ago

Which statement correctly describes an atom of the element helium? (9)

1 answer:

8 0

C. An atom of helium has its valence electrons in its first energy level, it wouldn't and can't satisfy the Octet rule as it only has 2 electrons, but with 2, it has a full shell, as the first energy level can hold only 2 electrons.

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What is the name of the large dome-shaped muscle under your lungs that helps you breathe?

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Lubov Fominskaja [6]

Answer:

C )

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Controlled scientific experiment tests scientific assumption (hypothesis), under controlled conditions.

In controlled scientific experiment, alters the test variable (independent variable) and observes the effects on the outcome variable (dependent variable).

Eg : Studying impact of sunlight on plant's group, where former independent variable is altered & its effects on dependent outcome variable is observed.

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3 years ago

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3 years ago

What is the answer???

igomit [66]

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3 years ago

Typically, a solid chloride unknown (not the AgCl product) for analysis is dried in an oven to remove absorbed water before the

tatyana61 [14]

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